CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS (parts 500 to 590) > PART 516—NEW ANIMAL DRUGS FOR MINOR USE AND MINOR SPECIES > SUBPART B—Designation of a Minor Use or Minor Species New Animal Drug (§516.11 to §516.52) > 516.23—Timing of requests for MUMS-drug designation.

516.23—Timing of requests for MUMS-drug designation.

A sponsor may request MUMS-drug designation at any time in the drug development process prior to the submission of an application for either conditional approval or approval of the MUMS drug for which designation is being requested.